[1]吴晓旭,邹学勇,王仁德,等.内蒙古乌审旗土地沙漠化退化过程研究[J].水土保持研究,2009,16(01):136-140.
　WU Xiao-xu,ZOU Xue-yong,WANG Ren-de,et al.Research on Desertification of Uxin Qi in Inner Mongolia[J].Research of Soil and Water Conservation,2009,16(01):136-140.
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内蒙古乌审旗土地沙漠化退化过程研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年01期 页码: 136-140 栏目: 出版日期: 2009-02-20
Title:
Research on Desertification of Uxin Qi in Inner Mongolia
作者:
吴晓旭, 邹学勇, 王仁德, 钱江, 格日乐
北京师范大学 地表过程与资源生态国家重点实验室, 防沙治沙教育部工程研究中心, 北京 100875
Author(s):
WU Xiao-xu, ZOU Xue-yong, WANG Ren-de, QIAN Jiang, GE Ri-le
State Key Laboratory of Earth Surface Processes and Resource Ecology, Engineering Research Center of Desertification and Blown-sand Control of Beijing Normal University, Ministry of Education, Beijing 100875, China
关键词:
土地沙漠化现状; 危害; 成因; 乌审旗
Keywords:
land desertification status; hazard; cause; Uxin Qi
分类号:
X171.1
摘要:
利用1986-2005年共5期卫星影像数据分析，结果表明：乌审旗近20 a沙漠化土地面积尽管存在波动，但自20世纪90年代中期以来总体上处于逆转态势，沙漠化土地面积由1986年占全旗总土地面积的79.15%下降为2005年的54.25%。结合地面气象站观测数据和相关社会经济资料，分析结果显示，在人口密度增加、年平均降水量减少和气温升高的情形下，造成土地沙漠化发生逆转的原因主要有两个：一是土地利用方式和结构的变化，其中耕地面积从136.57 km2增加到198.10 km2，居民地用地面积由2.17 km2增加到11.20 km2 ，其它土地利用类型面积的增加主要是通过沙地面积的减少来实现的；二是植被生态系统恢复，封沙育林育草、飞播造林等以防沙治沙为主的生态措施的实施，使得沙地植被得以恢复与重建，流沙面积逐年下降，沙漠化发生逆转。
Abstract:
Analysis of five satellite images from 1986 to 2005 indicates that though desertification land area of Uxin Qi fluctuated during 20 years, desertification reversion persists as a whole since mid-1990 with percentage of desertification land area to land area of Uxin Qi decreases from 79.15% in 1986 to 54.25% in 2005. Analysis based on observation data from ground weather station and social-economic information concerned shows that desertification reversed under the condition of population density increasing, annual average rainfall decreasing and temperature increasing. It proves that land use mode and structure as well as vegetation ecological system renew are determining factors for land desertification of Uxin Qi.

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备注/Memo

收稿日期:2008-9-28。
基金项目:国家科技支撑课题（2006BAD26B03）
作者简介:吴晓旭（1984- ），女，甘肃省靖远人，在读博士生，主要从事城市风沙灾害防治研究。E-mail：wxx@ires.cn
通讯作者:邹学勇（1964- ），男，安徽六安人，教授，博导，主要从事风沙物理与风沙工程、荒漠化研究。E-mail：zouxy@bnu.edu.cn

更新日期/Last Update: 1900-01-01